This thing pushes the envelope in a number of ways. While it appears to work correctly for 98+% of people who've tried it, your mileage may vary:
1. Will not work unless you have a version 4.0 browser (IE/NN/FF) or better. (Or any version of Firefox/Mozilla/iCab.)
2. Check your browser preferences. This site is based on Javascript. You'll need to have "Javascript Enabled" (Navigator) or "Scripting Enabled"/"JScript Enabled" (Explorer). You don't need to enable "Java" however. Java is not Javascript.
If you find a bug, check the above list, then contact me and tell me as much detail as you can: what browser version you have, what operating system, and what triggered the error. REALLY helpful is if you tell me the error message you get, if any! Thanx. Happy browsing.
Cheers,
JE